Domicile vs tax residence
Citizenship, tax residence, domicile and habitual residence are different concepts: here is how they relate and why the distinction matters for cross-border estate planning
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This page is general information, not legal or tax advice. Each concept below is defined differently in different countries; the result for your specific situation depends on the jurisdictions involved. For an opinion that applies to you, consult a qualified professional who works across the relevant countries.
Why the difference matters
The same person can be a citizen of one country, tax-resident in two others and domiciled in a fourth. Each of those four facts can pull a different jurisdiction’s law into the picture for a different purpose: succession, taxation, family law, recognition of a will. Treating them as synonyms is a common source of mistakes when planning a cross-border estate.
The four concepts at a glance
| Concept | Single or multiple | What it broadly means |
|---|---|---|
| Citizenship | Multiple may be held simultaneously | Legal nationality. Set by birth, descent or naturalisation. Held in any number of countries that permit it. Independent of where you live or where you pay tax. |
| Tax residence | Multiple may apply at the same time | Where you are liable for income, capital-gains, wealth or similar tax. Determined by physical presence (often a day count), economic ties, family ties or domicile under local rules. Treaties between countries may allocate primary taxing rights. |
| Domicile | One at a time | The country the law treats as your "real" permanent home for succession and family-law purposes: who inherits, the validity of a will, and forced-heirship rules. The exact test varies by jurisdiction, sometimes domicile of origin, sometimes of choice, but a person has a single domicile at any given moment. Tends to be hard to change and is often distinct from where you currently live. (For UK inheritance tax specifically, domicile was replaced by long-term residence from 6 April 2025. See the note below.) |
| Habitual residence | One at a time, slow to move | Where you actually live "as a settled home". Used by EU-style succession-law conflict tests (such as the EU Succession Regulation) to identify the law that governs a cross-border estate. Conceptually different from both tax residence and domicile. |
A note on UK inheritance tax from 6 April 2025
For decades, UK inheritance tax (IHT) used domicile to decide whose worldwide estate was taxed. That connecting factor changed to long-term residence from 6 April 2025, broadly whether a person was UK-resident for at least 10 of the previous 20 tax years (with a "tail" that keeps recent leavers in scope for a few years). This change affects IHT scope only. Domicile (and, in some cases, habitual residence) still governs succession: who inherits, whether a will is valid, and forced-heirship rules. It is general information, not legal or tax advice. Our UK inheritance tax and long-term residence guide explains the test and what it does not change.
Common confusions to avoid
- "Tax residence and domicile are the same." They are not. A person can be tax-resident in Malta yet remain domiciled in the United Kingdom; the inheritance picture and the tax picture come from different rules.
- "You can have several domiciles." You have one at any given moment. Some systems distinguish between a domicile of origin and a domicile of choice, but you are treated as having a single domicile at a time.
- "Domicile = the country you mainly live in." Closer to habitual residence than to domicile. Domicile often has a stronger "intent to remain" component and can persist after a long period abroad.
- "Citizenship sets your domicile." Not in most common-law systems. Citizenship and domicile move independently and can diverge over a lifetime.
- "Picking a tax residence settles inheritance." Inheritance is more often tied to domicile or habitual residence than to tax residence. The conflict-of-laws rule in each country involved decides which law applies.
Three short scenarios
Tax-resident in two countries at the same time
A person spends nine months a year in country A and three months in country B, but maintains a permanent home and family in B. Country A may treat them as tax-resident on physical-presence grounds; country B may treat them as tax-resident on permanent- home grounds. A bilateral tax treaty often resolves this by allocating primary taxing rights via a tie-breaker. The inheritance picture is a separate question, decided by domicile or habitual residence under each country’s succession-law rules.
Has my domicile changed because I have moved abroad
Common-law domicile is harder to change than residence. Moving countries with the intention of returning "eventually" often does not displace a domicile of origin; severing remaining ties and forming a settled intention to remain may. Outcomes are fact-specific and vary by jurisdiction. A qualified professional can review the indicia that matter in the relevant country and confirm where domicile sits.
Why does my will care about domicile, not residence
Many succession-law systems anchor on domicile (or, under EU-style rules, habitual residence) rather than tax residence. That means the legal validity of a will, the rules on forced heirship, and the recognition of foreign documents are often decided by domicile, even when the tax position is decided elsewhere. Two parallel pictures, sometimes pulling different ways, is a normal feature of cross-border estates rather than a mistake.
When to bring a professional in
A combined legal and tax view tends to be most valuable when:
- You suspect your tax residence and domicile sit in different countries
- You are considering a move that would change one but not the other
- You hold meaningful assets in countries other than where you currently live
- Family or beneficiaries are split across more than one jurisdiction
- An existing will was drafted under the assumption that all of these concepts coincide
You can browse independent professionals on our marketplace and decide whether to make contact. See also our cross-border tax planning page for the tax-side concepts that come up alongside the four above, and the asset types page for how moveable, immoveable, intangible and financial assets interact with these rules.
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